Improvement in machines for forming toe-calks



2Sheets-Sheet1. NG. g Toe-Callas. Patented Dec. 16, 1879 W. D. YOU Machine for Pormin Qmmsses NIPETERS, MTO-UTNUGRIPNEL WASHKNBTON D C.

2 SheetsSheet 2 i W. 1). YOUNG. Machine for Forming Toe-Oalks.

Patented Dec. 16, I879.

NJETERS, PHOTO-UTHOQRAPHER. WASHINGTON, D. C

UNITED. STATES PATENT OFFICE.

WILLIAM D. YOUNG, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO SHOENBERGER & (10., OF SAME PLACE.

IMPROVEMENT iN MACHINES FOR FORMING TOE-CALKS.

Specification forming part of Letters Patent No. 222,620, dated December 16, 1879; application filed June 30, 1879.

To an whom it may concern.-

Be it known that I, WILLIAM D. YOUNG, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Machines for Forming Toe-Oalks; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanyin g drawings, forming part of this specification, in which Figure 1 is a perspective view of devices embodyin g myinvention. Fig. 2 is a plan View of the bed and knives arranged therein, the plunger having been removed and a portion of the frame broken away. Figs. 3, 4, 5, 6, 7, and 8 are detailed views of the dies or knives pertaining to the bed. Figs. 9 and 10 are a side and sectional view of the plungendie. Fig. 11 is a view of the bar used in making the toe-calks. Fig. 12 represents a toe-calk as made by my devices.

Like letters refer to like parts wherever they Heretofore, in the manufacture of spurred toe-calks from flanged bars, two general methods have been adopted, the first of which, and

that most generally followed, required at least.

two operations: first, the severing of the flange from the bar, so as to leave a spur thereon, and, secondly, the severing of the bar into sectrons to form the calk. If a curved calk was desired, a third or bending operation became necessary.

The objection to such method was the amount of machinery and the time and labor required.

The second method devised was to cut and curve the calk at one operation, and, while the section was held by the bending-dies, to swage in portions of the flange, so as to give the taper to the calk, and at the same time form a spur or spurs thereon. This method requires heavy and somewhat complicated machinery, which, owing to the swagingoperation being performed in the machine, is liable to get out of order.

The object of the present invention is to provide simple, effective, and durable machinery provided with a series of set-screws for securing and adjusting the dies or knives.

c is the bed (or flange) knife, which forms almost the entire of one side of the die-cavity, and serves to detach the superfluous portion of the flange from the toe-call; bar. held in position by the side screws, 0 0, may be adjusted laterally by the insertion of liners, in manner well known to the skilled mechanic, and is adjusted toward the die-cavity, to compensate for wear or loss in grinding, by means of a set-screw, 0 or its equivalent.

d indicates a second die or knife, which is beveled at its edge, as at in order to cut the flange of the bar so as to point the spur on the calk, and which die or knife, in conjunction with that marked 0, forms one side of the cavity, and is adjustable by means of a setscrew, (1.

The opposite side of the die-cavity is formed by a back plate, f, which preferably extends somewhat above the surface of the dies or knives, so as to form a guide to facilitate the proper feeding in of the bar; but other barguides may be substituted for the extension of plate f, if preferred,

Interposed between the back plate, f, and the dies or knives c d are the middle dies or knives, 0c, the upper surfaces of which are beveled or sloping, as at s, to accommodate the corresponding bevel on the toe-call: bar.

When a bar havinga flat surface is used the surface of dies 0 0 will correspond, slope being omitted. These knives are also rendered adj ust-able by means of the set-screws 6 0 To fill the die-box a and retain the middle It is knife, 0, oppositeits fellow 6, block of metal 9 or its equivalent is used.

The bed A is slotted at a point beneath the cavity formed by the arrangement of the dies or knives 0 d e e, and the dies 0 6, together with back plate, f, are clamped and have their lateral adj ustments made by means of setscrews f f &c., which project through the box a a and bear upon the back plate.

Secured to the box a, on the same side as the back plate,f, or barguide, is a gage, F, which maybe made adjustable, if desired, and which serves to arrest the bar as it is fed beneath the punch, so as to insure the proper amount of feed and the proper position of the bar when acted on by the reciprocating die or punch.

Arranged in a suitable upright or frame, B, is a plunger or piston, O, which may be recip rocated by power, and to the lower end of plunger or piston G is secured in any suitable manner a die, h, havin an offset, 1', or, in other words, corresponding in cross-section to the die-cavity formed by the bed-knives, within which it is set to enter.

The under surface of die h is convex or curved, so that in its operation it shall impart a curved form to the toe-calk.

The devices being constructed and combined substantially as specified, their operation will le as follows: Power having been applied to reciprocate the die h, and a toe-call: bar, having on one edge thereof a flange similar to that shown in Fig. 11, having been properly heated, the end of the bar is placed upon the surface of middle die or knife, 0, and pushed forward beneath the reciprocating die until it is arrested by gage F. In this position its flange will rest on die or knife 0, and its front edge or end will project a very slight distance (notmore than one-sixteenth or one-thirty-second of an inch) over the edge of middle knife, 0, and while the bar is thus supported the reciprocatin g die h descends, first bending the metal so as to cause it to conform to the curved face of the reciprocating die, and then forcing it into the die-cavity, so that the knife or die 0 removes a portion of the flange from the bar, as indicated by dotted line, Fig. 1], at the same time that the dies or knives d e sever a section from the bar, thus forming a complete spurred toe-calk, (see Fig. 12,) which drops through the slot in bed A beneath the diecavity.

As the plunger rises, the bar is pushed forward, and the operation is repeated on the descent of the plunger, the scrap being pushed back on die 0, whence it can be readily removed.

The several dies or knives 0 do a, which form the cavity, and the plunger-die It, can be readi] y removed and ground or sharpened, and can be easily adjusted to compensate for wear and alter the size of the cavity.

The advantages of my invention are the simplicity, durability, and effectiveness of the devices, and the readiness with which theparts can be repaired and replaced.

I am aware of the patents of E. It. Cheney, No. 80,807, August 11, 1868, and 19.1 Burke, July 6, 1869, No. 92,259, and do not herein claim anything therein shown or described but,

Having thus described the nature, operation, and advantages of my intention, what I claim, and desire to secure by Letters Patent, is-

The combination of the plunger-die h, having a convex face, with the adjustable dies 0 d 0 0, back plate, f, and gage F, whereby a complete curved spurred toe-call; can be cut from a flanged bar, substantially as specified.

In testimony whereof I, the said WILLIAM D. YOUNG, have hereunto set my hand.

WILLIAM l). YOUNG.

WVitnesses F. \V. BITTER, Jr., JNo. K. SMITH. 

